Pneumatic brush.



PATBNTED 00T. 21. 1907.

J. PL SCHADLE.

PNEUMATIC BRUSH.

APPLICATION FILED JAN. 1e, 1905.

Jaded?) My invontionrela'tes to improyinonts in pneumatic .A

'tendency to clog the'interior or' tho brushes and othm offcommunication .betweon tlv hollow Casing and tin- ,back 3. Asillustrated in the l1'a\\'in-,rs. his fastoning i.

JACOB E; ASCHADLE", oF'sT. PAUL, MiNNEsoTA.

PNEUMATH: BRUSH.

specification pf Lettrs Patent. Patented ont. 22. 1907.

Application filed AJimmy 16, 1905. serial No. 24u89.

l volvo freely when communication is established ,botwe-:n the pipe .9of the tliss'minating syst-iemand the interior o1' the hollow.Casing-'and' a-partial vacuum is (estalis'etl witlin said'casing by anysuitablamoans motsliown); tl" osaid pipo 9 boing, of ooiu'so. conneriodwith a system of tubing running to .tlro air exhaust To all whom it mag/concerm Be it known that I, JACOB E. SCHADLE, a citi'arrrcify the.United States, residing at Si. Paul, i-irtlie'ooimty of 'RamseyaxidSta-to of Minnesota, hare -invonod a new and useful'.PneumaticBrush, (1f-Which thiAI l'ollr, w ingisa Specification.

brushes, more particularly, though not oxvlunivol'y. ining and vfandescribed in niy aforesaid application for` tended for ne asblackboard@rast-rs. .l' Lutter-s Pat-ent. 'The liollonj casinglisl'orini'ioalljt It i's `the objot o1" the invention to prcu ido'an'ol'lif Connogted' to the lruslihaok. theonlyopenings into tho cientbrush foruse inoonnection-Witin systi-nr of, disi seminating pipes,subject t0 the influencia-.of air-05o hausting means, for exampleliko'tlzoso (leaf-'ritual in trollod passage loading tol the pipo 9..Tl: Communi-l G-ation hetyvepn tire 'dissolninating syStc-nl and' rizoinw rior Vof vthe hollow-Pasing ni'adv at lWill. ,by pressing 'tizobutton atl1aol'.o' l to tim hollow ("asing. and ,iurilfli In the use oithe apparatus dcSc-rilwrl and rclaimed in that application I havofound'rial. lic-cause o1' lle@ strong aflinitf-,f of' Chalk dust for.moisture.-lforo is a f j formi-r position, and the yalvo Tho spring 12.,i

bullo-n" E removedtiro laltor rolurnml to its V is rlosod -h \"1mganso1`parts of tlie apparatus With such. dust. I Laim llisCov-.i u i .A I erdthat to obvia-te Vsaid objootionit is .dosirahlv .to use iIii-operation. twliilo tho-valve is open. a partial N'acuf a. pneumaticbruoh' ivliic'h is p'royigled uith a deloctoi". mn is-Cratod Wit-lainthe l:.ollov\' vasinghy nit-:ula of (lio adapted t0' prevent the packingof tir dust in thoin- I aiiexlzaust' o vstbin; air is mm1 lzgyfmgli 'tio'opening' ter'or of thol brush Structure.- -To that ngl, and to pro- 4'and 'a ourrontlof air thus ostafhlislwcl. iclrcau; dur'e a^moreserviceable pneumatic brush lor general tlo defloctorClo Votato.anddraws tipo dust rolixo'od uses, my invontionton'istso1' the elementsillustratod i I A in the acompanying drawing, andilicrciua'ftor. do-

ing and thence four 'tl-rough ilo pipo '9. Thlroiation i scribed andclaimed. i

i l i l In the said draWingfFiguro l is acentral Sectional Yofthec'asing.'

is'a-ccomplishod by screws 6. L f

l The 4de'lootor C is arranged Within tho'hifllmv oasing Bundia'preforably of nnagit-.uor typo, ai lhon-*11, consis'ting of. asniallair fan piyotally Comu-Cmd Wilhllnl i shaft 7 said 'sha-ftlieingattachd to-tho interior of the cap Sat the point The deflectorisndaplod to ro- Il producing moans, for cainplo, liktl the syterlioftub-'f interim-.boingthrough the' bag-k 3 and .tho ral-Vif-`Ciui-` ibytli'tf brush ingthe usual marmi-i', into the hollow Cas 80 of thedlectoi"agitatogth@Cloud of ('ia'lli nl" otljEr-rilust and a valve intlllo clmlnhrr fol; regulating sadnir vxhnusr.

